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HardenersHardenerGloss: 30 GU 60°

PC80

PC80 PU hardener (as listed by the dealer for PTL80 SM)

Hardener for the two-pack PU self-sealing lacquer PTL80 SM (30 gloss), 50 % by weight and by volume per the dealer listing. It does not exist as a product at Technocolor or the dealer; every official source puts the aromatic hardener PC10 in that slot.

  • Second component of PTL80 SM — 50 % (dealer listing only)

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Answers are based on the PC80 data and the products it mixes with.

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Mixing matrix

  • PC80Hardener
    % by weight: 50 %dealer% by volume: 50 %dealer

    As printed on the dealer's PTL80 SM listing

    Code unverified and not purchasable. In practice use PC10 at the same ratio.

  • PC10Hardener
    % by weight: 50 %official% by volume: 50 %official

    Standard hardener for the whole PTL80 family (official site; 2022 catalog: 'PC10 50 %' for M/SM/G)

    Confirmed at 50 % by the 2022 and 2025 catalogs.

  • PC20Hardener
    % by weight: 40 %catalog

    Alternative to PC10 per the 2025 catalog ('PC10 / PC20 — 50 / 40 %')

    Slightly better yellowing resistance than PC10.

  • S50Thinner
    % by weight: 20–30 (typ. 25) %dealer% by volume: 20–30 %dealer

    Main thinner

    Official PTL80 M page: 20–30 % by weight = 25–35 % by volume; the dealer's SM card shows 20–30 % by volume too — likely simplified.

  • S100Additive
    % by weight: 5–10 %dealer

    When flow-out needs help (heat, large flat panels)

    Retarder S100 at 5–10 % on top of the main thinner to improve flow.

Percentages are per 100 parts of component A.

Characteristics

Solids
24 ± 1 %dealer
Chemistry
aromatic polyisocyanate (as PC10)recommended
Lightfastness
poor — yellows with age (if it is PC10)catalog
Pot life
4 hdealer
Drying · Conditions
20 °C, PTL80 SM catalysed at 50 %
Drying · Touch-dry
15 mindealer
Drying · Full cure
6 hdealer
Drying · Dust-free
8–12 minrecommended
Drying · Sand or stack
2–3 hrecommended
Gloss
30 GU 60°dealer
Viscosity
55 ± 5 sdealer

Application

HVLP

Nozzle
1.4–1.6 (typ. 1.5)recommended
Pressure · air
2–2.2recommended
Spray viscosity
18–22 s DIN4recommended
Consumption
150dealer

Airmix: tip 0.23–0.28 mm (09–11 thou), fluid 60–80 bar, atomising air 1–1.5 bar — engineering estimate.

Process and compatibility

Goes with
PTL80 SM
Don'ts
  • Do not try to order PC80 — no such product; use PC10
  • Do not use an aromatic hardener under pale/white finishes — it yellows
  • Close the can immediately — isocyanate reacts with air moisture

Storage

Safety: Contains isocyanates: use a carbon-filter or air-fed respirator, gloves and extraction. (General PU hardener practice.)

Mixed into

PC80 / PTL80 SG / PTL80 SM

Sources

Value tags: “official”, “dealer”, “catalog”, “schedule” are Technocolor data; “workshop” is from our own datasheets; “recommended” is our engineering estimate (hover to see the reasoning).

Not covered by the sources
  • PC80 itself: no product page, no dealer item, no catalog entry, no TDS — every intrinsic property (solids, NCO content, density, viscosity, packaging, shelf life) unknown
  • Confirmation from Technocolor that PC80 = PC10 (or a discontinued/regional code)
  • Volume ratio of S50 for PTL80 SM (dealer 20–30 % vs official 25–35 % for M)
  • Shelf life / storage temperature / packaging
  • Not used in any official finishing schedule (dealer schedule exists only for PTL80 M with PC10)
  • No TDS found (web search budget exhausted in this run)